Joan's Travel Tip No. 15:
This is a common-sense tip I'll pass on from something I read yesterday: DON'T PUT CASH OR ANYTHING NEAR AND DEAR TO YOUR HEART IN YOUR CHECKED LUGGAGE. I guess there's a lot of pilfering going on at the airports. You can use a TSA-approved lock or have your bags shrink-wrapped (more common in European airports). Carry anything you really value in your carry-on. Also, it follows that taking expensive jewelry etc might not be worth the risk (consider hotels, pick-pockets, etc.).